336 MEMOIRS OF THE CARNEGIE MUSEUM 



2. Marginal vein shorter than tlie subcostal vein, the stigmal vein long, well ileveloped ; hind tibia- armed 



with many long bristles Enryiscliia Howard (type E. lestophoni How.). 



Marginal vein very long, mucli longer than the subcostal, the stigmal vein minute ; hind tibiiu unarmed, 

 without long bristles Elasmus Westwood (type Eulophus flaheUatus Fonsc). 



3. Marginal vein shorter than the subcostal, the stigmal vein long, well developed ; antenme simple, with- 



out branches Euryischia Howard. 



Marginal vein very long, longer than the subcostal, the stigmal vein very short ; anteume with three 

 branches Xlasmus Westwood. 



Family LXXI. EULOPHID.E. 



1840. Eulophides, Subflmiily 5 (partiin), Westwood, Intro. Mod. Class. Ins., p. lOG; 



Synop., p. 73. 

 1843.- Eulophiui, Subfamily (partini), Haliday, Trans. Ent. Hoc. London, III., p. 



296. 

 1856. Myinoida3, Faniilie 3 (partiin), "Forster, Hyni. Stud., II., pp. 18, 21 and 30. 

 1856. Elacliistoid;e, Familie 18 (partim), Forster, Hyni. Stud., II., pp. 19, 20 and 



72. 

 1856. Eulophoidte, Familie 19 (partim), Forster, Hym. Stud., II., pp. 19, 26 and 74. 

 1856. Entedonoidte, Familie 20 (partim), Fcirster, Hym. Stud., II., pp. 19, 26 and 



78. 

 1856. Tetrastichoidffi, Familie 21 (partim), Forster, Hym. Stud., II., pp. 19, 26 and 



83. 

 1878. Tetrastichina, Tribus (partim), Thomson, Hym. Skand., V., p. 180. 



1885. Tetracampinse, Subfamily (partim), Howard, Ent. Amer., I, p. 198. 



1886. TetracampintE, Subfamily (partim), Howard, Ent. Amer., IL, p. 98. 



1900. Eulophidaj, Family LXXL, Ashinead, Proc. U. S. National Museum, XXIII., 

 p. 203. 



This very large family, which comprises mostly very small species, is separated 

 from all the previously descriljed families, except the Ekwaidx, by thoracic and 

 pedal characters, and to a great extent also by venational peculiarities impossible to 

 describe in detail to any except to those who have a thorougli knowledge of the 

 various ftimilies. 



The principal points to be noted, however, are the axilhe which are advanced 

 forward into the basal region of the parapsides, o)i or hcfurean imaginary line drawn 

 from tegula to tegula, a character found in none of the foregoing families, except the 

 Elasmidas whicli is too obviously distinct in many other wa3's to require specifica- 

 tion again. 



Five distinct sul>families may l)c recognized by the aid of the following tal)lc : 



